走在大街上每隔几十米就会看到公共垃圾箱（见图），请据图回答：

（1）从垃圾箱上的标志可以判断甲中应装入的是不可回收垃圾，乙中装入的是____垃圾．

（2）随着社会的发展，人们对垃圾分类处理的意识越来越强，请将以下生活垃圾进行分类：废报纸、易拉罐、剩饭菜、苹果皮装入甲中的是____，装入乙中的是____．

（3）用过的废旧电池不可以随意乱扔，因为它属于____垃圾，会对环境造成污染．

（4）我国采用的垃圾处理方法主要是____、填埋和堆肥等方法．

一组数据4、5、6、7、8的方差为S₁²，另一组数据3、5、6、7、9的方差为S₂²，那么S₁²____ S₂²（填“＞”、“=”或“＜”）．

根据短文内容, 从下面方框内的七个选项中选出五个还原到短文中, 使原文句子通顺, 结构完整。

    ____ It has around 3 billion fans—nearly half the world's population! And about 300 million people play this game. That's 4 percent of the world's population!

    ____ Many people in old days played the early form of this modern game. Cuju(蹴鞠), a ball-kicking game in China, was reported as early as 2, 500 B. C.  Around the same time in Greece, people were also playing a similar ball game without using their hands.

But modern soccer didn't become official(官方的)until 1863. An Englishman called Cobb Morley introduced the idea of a soccer association(联盟). ____ From then on, other associations in the countries were set up. They came together—to make up the FIFA, which organizes the World Cup.

It's not easy to tell what makes soccer so popular. ____ Soccer needs only two feet and a ball. This makes it a sport that developing countries can play easily. Some of the sport's best players come from these poor nations. 

    ____ The sport's no-hands rule makes beautiful dance—like movements on the field. What's more, this sport excites the heart. Teams might score only a few times each match, so matches can turn around suddenly.

     No one knows who will win at the next World Cup. But one thing is certain: The world will be watching.

    In colleges around the country, most students are also workers. The reality of college can be pretty different from the images presented in movies and television. Instead of the students who wake up late, party all the time, and study only before exams, many colleges are full of students with pressing schedules of not just classes and activities, but real jobs, too.

    This isn't a temporary phenomenon. The share of working students has been on the rise since the 1970s, and one-fifth of students work year round. About one-quarter of those who work while attending school have both a full-course load and a full-time job. The arrangement can help pay for tuition (学费) and living costs, obviously. And there's value in it beyond the direct cause: such jobs can also be critical for developing important professional and social skills that make it easier to land a job after graduation. With many employers looking for students with already-developed skill sets, on-the-job training while in college can be the best way to ensure a job later on.

    But it's not all upside. Even full-time work may not completely cover the cost of tuition and living expenses. The study notes that if a student worked a full-time job at the federal minimum wage, they would earn just over $15,000 each year, certainly not enough to pay for tuition, room, and board at many colleges without some serious financial aid. That means that though they're sacrificing time away from the classroom, many working students will still graduate with at least some debt. And working full time can reduce the chance that students will graduate at all, by cutting into the time available for studying and attending classes.

    There is little reward for attending but not finishing college. Students who end up leaving school because of difficulty in managing work and class are likely to find themselves stuck in some of the same jobs they might have gotten if they hadn't gone at all. The difficulty of working too much while in school can create a cycle that pushes students further into debt without receiving any of the financial or career benefits.